i have a relayset for Arduino where i find these numbers on each relay: 10A-30VDC 10-28VDC
Now, id like to connect that relayset with external devices that run 12V and all the way up to 35A.
I was reading about the logic behind relays and some say that its okay to push in 20A into 10A relay, is just the relay output will not exceed 10A. I also read that the Watts should never exceed, and that's the most important thing.
So taking my relayset 10A x 30VDC = 300 WDC
and my external devices, lets say one of the connectors run on 35A 35A x 12VDC = 420WDC
To my questions:
- Is that okay to work with 420W ?
- If not, what can happen ?
- Is there a way to limit the input to relays so it stays below 300W ?
- If i use a transistor (NPN) in the circuit, after the relays, does the relay still take damage from the incoming power ?
I tried to google but is kind of hard to get specific answer to these questions, also id like you to fills out other points (that I'm not mentioning) that i should concern.